/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.engine.impl.cmd;

import com.je.bpm.engine.ActivitiIllegalArgumentException;
import com.je.bpm.engine.impl.interceptor.Command;
import com.je.bpm.engine.impl.interceptor.CommandContext;
import com.je.bpm.engine.impl.persistence.entity.VariableInstance;
import com.je.bpm.engine.impl.persistence.entity.VariableInstanceEntity;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * 获取执行变量 Cmd
 */
public class GetExecutionsVariablesCmd implements Command<List<VariableInstance>>, Serializable {

    private static final long serialVersionUID = 1L;
    protected Set<String> executionIds;

    public GetExecutionsVariablesCmd(Set<String> executionIds) {
        this.executionIds = executionIds;
    }

    @Override
    public List<VariableInstance> execute(CommandContext commandContext) {
        // Verify existence of executions
        if (executionIds == null) {
            throw new ActivitiIllegalArgumentException("executionIds is null");
        }
        if (executionIds.isEmpty()) {
            throw new ActivitiIllegalArgumentException("Set of executionIds is empty");
        }

        List<VariableInstance> instances = new ArrayList<VariableInstance>();
        List<VariableInstanceEntity> entities = commandContext.getVariableInstanceEntityManager().findVariableInstancesByExecutionIds(executionIds);
        for (VariableInstanceEntity entity : entities) {
            entity.getValue();
            instances.add(entity);
        }
        return instances;
    }

}
